Steam-actuated valve



(No Model.) 7 2 Sheets-Sheet l. G. W. WEINM'AN. I STEAM AGTUATED VALVE?V 1%. 256,523. Patented Apr.18,1 882.

ATTORNEYS N4 PETERS. PhmLnhn n nur. Wuhingiou. 0.0,

(No Model.)

/ 2 Sheets-Sheet 2.

G. w. WEINMAN.

STEAM AGTUATED VALVE.

Patented Apr. 18, 1882} f, VENTOR ATTORNEYS UNITE STATES PATENT Erica.

GEORGE IV. WEINMAN, )F COLUMBUS, OHIO.

STEAM-ACTUAT ED VALVE.

SPECIFICATION forming part of Letters Pia-tent No. 256,523, dated April18, 1882, Application filed November 19, 1881. (No model.)

To all whom it may concern:

Be it known that I, GEORGE WM. WEIN- MAN, of Columbus, in the county ofFranklin and State of Ohio, have invented certain new of thisspecification.

any'suitable means.

My invention relates to valves for steampumps and it consists in thepeculiar construction of the same, as will be hereinafter fully setforth and claimed.

In the drawings, Figure 1 represents a side elevation of a steam-pumpembodying my invention. Fig. 2 is a longitudinal "ertical section takenthrough the steam-chest, valve, and cylinder. Fig. 3 is a verticalcross-section taken through the steam-chest and valve on line 3 3 Fig.4; and Fig. 4 is a longitudinal section taken on line 00 as, Fig. 3.

A is the cylinder of a steam-pump. B is the piston; B, thepiston-rod. C-is a steam-chest, which is provided with a valve, D, having aninlet-port, a, at its upper end for the admission of steam, andsupply-ports I) and c at its lower end, whereby steam is supplied toeither end of the cylinder A through the ports 61 and" e to operate thepiston B. The valve D is also provided at its sides \vithltwo elongatedslots, E and F.

and F, are two vertical slots or ports, E and F, which are soconstructed and placed as to alternately communicate with the ports Gand H, formed on the interior of the steam-chest O, and extending toeither end of thesame, when said valve is given a rocking motion by Onemeansis shownin the drawings-via, a shaft, I, extending through 5 oneside of the steam-chest O, and provided on its end with an eccentric, g,which engages with the slot E. The other end of the shaft I is providedwithan arm, I, which is connected to the piston-rod B in such a mannerthat as said piston-rod is driven backward, and forward it acts to giveto the shaft I a rocking motion, which is in turn communicated tothevalve D by means of the eccentric g.

Extending out from the eccentricgis an arm, h, which, as the shaft I isrocked, engages with either of the lugs i or j, which extend downwardfrom the interior of the valve D, and aid in starting said valve if fromany cause it should become stuck in the steamchest 0.

Steam is supplied to the interior of the valve through the inlet-port a.Now, if the valve is in the position shown in Fig. 2 steam passesthrough the supply-port b into the port d, and from thence into the leftend of the cylinder, where, acting on the piston, it will move it towardthe right. Now, as the piston B is being driven in that direction thearm I, being connected to the piston-rod B, acts to partially revolvethe shaft I, which in turn, by means of the eccentric g on the end ofsaid shaft I, acts to turn the valve D on its axisuntil the verticalport E communicates with the port I G, and steam passes through theelongated slot E and down through the vertical port E to the port G, andfrom thence to the end of I of the steam-chest O, and allow of the valveD being thrown over by the force of the steam passing through the portG. As the valve D is thrown .over it feeds steam to the port e throughthe supply-port c, and exhaust through the port d,.which causes theaction of the piston to be reversed, as is also that of the valve, 850.

If from any cause the valve should stick or become'clogged in thesteam-chest, the arm it engages with either of the lugs i or j, as thecase may be, to loosen or start said valve.

What I claim is- 1. In a steam-pump valve having ports formed on theinterior of the steam-chest, and extending to either end thereof, saidports alternately receiving steam from the interior of the valve,whereby the valve is operated, a shaft and an' eccentric, whereby arocking movement is imparted to the valve, substan= tially as and forthe purpose set forth.

2. In a steam-pump valve, the shaft I, said shaft being provided with aneccentric, g, on its end, whereby a rocking mot-ion is imparted to thevalve, substantially asand for the pur- 5 pose shown and described.

3. In a steam-pump valve, the combination, with the lugs z andj, of theshaft I, said shaft being provided with an eccentric, g, for imparting arocking motion to the valve, and the arm h, substantially as and for thepurpose IO shown and described.

In testimony whereofI have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE WM. WEINMAN.

W itncsses J NO. GRoWELL, J r., IV. E. DONNELLY.

